IRA FLATOW, HOST:
Well, luckily that we lost Dr. Crabtree that - I'm sorry that we did lose him, but fortunately for us we have our next guest with us here, it's Dr. James Watson, sitting right here with us. Welcome to the program.
JAMES WATSON: I'm glad to be back with you.
FLATOW: Well, let me begin our interview a little bit early. You are certainly not unknown, Watson and Crick, and you have also a new book out now called "The Double Helix," and it's got all kinds of annotations, and what's new about this version of the book?